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anonymous

  • 4 years ago

help me on Geometry

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  1. UnkleRhaukus
    • 4 years ago
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    yes

  2. anonymous
    • 4 years ago
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    14-19

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  3. UnkleRhaukus
    • 4 years ago
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    i can not read 14

  4. anonymous
    • 4 years ago
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    fine 15

  5. UnkleRhaukus
    • 4 years ago
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    15 the shaded region is {a rectangle} - 2 {triangles} \[\{10mm \times 5√2mm\}-2\{1/4 \times (5√2mm)^2\}\]

  6. anonymous
    • 4 years ago
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    That answer?

  7. anonymous
    • 4 years ago
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    with work shown

  8. UnkleRhaukus
    • 4 years ago
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    \[=50√2mm^2-25mm^2\]

  9. UnkleRhaukus
    • 4 years ago
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    \[=25(2√2-1)mm^2\]

  10. UnkleRhaukus
    • 4 years ago
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    16. {big rectangle}-{medium rectangle}-{small rectangle} =12cmx15cm-12cmx3cm-4cmx7cm \[=116cm^2\]

  11. UnkleRhaukus
    • 4 years ago
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    i can not read 17 either

  12. anonymous
    • 4 years ago
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    ok next

  13. UnkleRhaukus
    • 4 years ago
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    18. \[ 100=x \times 15+x=16x\] \[x=16/100=4/25\]

  14. anonymous
    • 4 years ago
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    ok 19 and im done! Damn home work

  15. UnkleRhaukus
    • 4 years ago
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    ops error 18. should be \[100=x \times (x+15)\] \[100=x^2+15x\] \[0=x^2+15x-100\] ...

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